hindsight is 20/20.

I do agree with this sentiment. At the same time, it’s still unacceptable for a global service like MS365 to go down for extended periods of time. I wouldn’t be surprised if the hotel chain was sold on some MS guarantee that it would never become unavailable.

Although I would also believe a scenario where the hotel chain "IT” (aka the owners son or grandchild) just used default alert settings and didn’t bother to setup fallback alerting mechanisms.

In short, all parties suck here (MS and hotel)

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Espressosaurus 2 hours ago | parent [-]

Hindsight is 20/20? Bullshit. Safety critical systems should not rely on transport layers that are guaranteed to fail. Email especially! Physical alarms are the way here. The email should be for convenience and to inform higher-ups.

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reaperducer 2 hours ago | parent [-]

Safety critical systems should not rely on transport layers that are guaranteed to fail.

Go invent a transport layer that will never fail, and make yourself rich.

Because right now, there is no such thing.

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Espressosaurus 2 hours ago | parent | next [-]

Everything can fail even down to individual capacitors on the board but that doesn’t make the failure probabilities or failure mode equivalent to something like email that is best effort only and can be actively blocked by things like spam filters that aren’t even under your control

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Rygian 2 hours ago | parent | prev | next [-]

"Loud noises and flash bright red lights" is an industry- and regulations-accepted transport layer for a life-or-death signal.

Email is not.

	▲	reaperducer 8 minutes ago \| parent [-]
		"Loud noises and flash bright red lights" is an industry- and regulations-accepted transport layer And yet, still not "guaranteed," which was the criteria specified by the OP.

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cwillu an hour ago | parent | prev [-]

Audible alarms, failsafe heartbeats and scheduled networking are not new technologies.

	▲	reaperducer 7 minutes ago \| parent [-]
		Audible alarms, failsafe heartbeats and scheduled networking are not new technologies. And yet, still not "guaranteed," which was the criteria specified by the OP.